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Tech Article

BMW E30 3-Series Seat Hinges, Sport vs Comfort

Last Updated: 06/10/2021
Parts Group: Seat hinge
This article discusses the outboard and inboard front seat hinges for the BMW E30 with the main focus being on differences between sport seat and comfort seat hinges. If you're not here for the technical analysis but would rather buy a used unit from us, guaranteed to work and fit, then please select the link below.

All E30 front seats share a similar outboard seat hinge, but the inboard hinge has some significant differences between models.

All E30 front seats have two seat hinges, one outboard and one inboard. The hinges use gas-pressurized tubes to help push the seatback forward. This avoids the inconvenience of passengers having to forcefully pull the seatback forward, while simultaneously releasing the lock on the hinges.

From each hinge a pillar extends up to the seatback. On the non-sports (a.k.a. comfort) seats, only the outboard hinge has a gas-pressurized tube for the seatback. On the sports seats, both the outboard and the inboard hinges have that tube.

At the top of each seatback pillar is an embedded stud which enables the top eye of the gas-pressurized tube to be attached. By implication all outboard hinges will have this stud, while only sports seats will have it on the inboard hinge as well.
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